linux-kernel - Re: [PATCH v3 1/4] rtc: isl1208: enable interrupt after context preparation

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Message-ID: <20180306202026.GG3035@piout.net>
Date:   Tue, 6 Mar 2018 21:20:26 +0100
From:   Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:     Denis OSTERLAND <denis.osterland@...hl.com>
Cc:     "a.zummo@...ertech.it" <a.zummo@...ertech.it>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "mgr@...gutronix.de" <mgr@...gutronix.de>,
        "m.grzeschik@...gutronix.de" <m.grzeschik@...gutronix.de>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux@...ck-us.net" <linux@...ck-us.net>,
        "jdelvare@...e.com" <jdelvare@...e.com>,
        "linux-rtc@...r.kernel.org" <linux-rtc@...r.kernel.org>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>
Subject: Re: [PATCH v3 1/4] rtc: isl1208: enable interrupt after context
 preparation

On 05/03/2018 at 10:43:53 +0000, Denis OSTERLAND wrote:
> From: Michael Grzeschik <m.grzeschik@...gutronix.de>
> 
> The interrupt handler got enabled very early. If the interrupt cause is
> triggering immediately before the context is fully prepared. This can
> lead to undefined behaviour. Therefor we move the interrupt enable code
> to the end of the probe function.
> 
> Signed-off-by: Michael Grzeschik <m.grzeschik@...gutronix.de>
> Signed-off-by: Denis Osterland <Denis.Osterland@...hl.com>
> ---
>  drivers/rtc/rtc-isl1208.c | 34 +++++++++++++++++-----------------
>  1 file changed, 17 insertions(+), 17 deletions(-)
> 
Applied, thanks.

-- 
Alexandre Belloni, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com